.onlineRetailerItemDescription {display: none;}39", Black, Dual Track Shelf Standard, Heavy Duty Steel, Ideal For Decorative, Utility Or Filtering Applications, 1"Width, Slotted For 1-1/4" Adjustments, Stronger, Double Slotted Standards For Use With Only The 182 Series Brackets & #82 Wood Screws, 14 Gauge Steel, Can Hold Up To 450 LB Per Pair.39", Black, Dual Track Shelf Standard, Heavy Duty Steel, Ideal For Decorative, Utility Or Filtering Applications, 1"Width, Slotted For 1-1/4" Adjustments, Stronger, Double Slotted Standards For Use With Only The 182 Series Brackets & #82 Wood Screws, 14 Gauge Steel, Can Hold Up To 450 LB Per Pair.